arch/arm/mach-omap2/board-apollon.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-apollon.c
   3  *
   4  * Copyright (C) 2005,2006 Samsung Electronics
   5  * Author: Kyungmin Park <kyungmin.park@samsung.com>
   6  *
   7  * Modified from mach-omap2/board-h4.c
   8  *
   9  * Code for apollon OMAP2 board. Should work on many OMAP2 systems where
  10  * the bootloader passes the board-specific data to the kernel.
  11  * Do not put any board specific code to this file; create a new machine
  12  * type if you need custom low-level initializations.
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License version 2 as
  16  * published by the Free Software Foundation.
  17  */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/init.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/mtd/mtd.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/mtd/onenand.h>
  25 #include <linux/irq.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/delay.h>
  28 #include <linux/leds.h>
  29 #include <linux/err.h>
  30 #include <linux/clk.h>
  31 #include <linux/spi/spi.h>
  32 #include <linux/spi/tsc210x.h>
  33
  34 #include <asm/hardware.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/flash.h>
  38
  39 #include <asm/arch/gpio.h>
  40 #include <asm/arch/led.h>
  41 #include <asm/arch/mux.h>
  42 #include <asm/arch/usb.h>
  43 #include <asm/arch/board.h>
  44 #include <asm/arch/common.h>
  45 #include <asm/arch/gpmc.h>
  46
  47 /* LED & Switch macros */
  48 #define LED0_GPIO13             13
  49 #define LED1_GPIO14             14
  50 #define LED2_GPIO15             15
  51 #define LED3_GPIO92             92
  52 #define LED4_GPIO93             93
  53
  54 #define APOLLON_FLASH_CS        0
  55 #define APOLLON_ETH_CS          1
  56
  57 static struct mtd_partition apollon_partitions[] = {
  58         {
  59                 .name           = "X-Loader + U-Boot",
  60                 .offset         = 0,
  61                 .size           = SZ_128K,
  62                 .mask_flags     = MTD_WRITEABLE,
  63         },
  64         {
  65                 .name           = "params",
  66                 .offset         = MTDPART_OFS_APPEND,
  67                 .size           = SZ_128K,
  68         },
  69         {
  70                 .name           = "kernel",
  71                 .offset         = MTDPART_OFS_APPEND,
  72                 .size           = SZ_2M,
  73         },
  74         {
  75                 .name           = "rootfs",
  76                 .offset         = MTDPART_OFS_APPEND,
  77                 .size           = SZ_16M,
  78         },
  79         {
  80                 .name           = "filesystem00",
  81                 .offset         = MTDPART_OFS_APPEND,
  82                 .size           = SZ_32M,
  83         },
  84         {
  85                 .name           = "filesystem01",
  86                 .offset         = MTDPART_OFS_APPEND,
  87                 .size           = MTDPART_SIZ_FULL,
  88         },
  89 };
  90
  91 static struct flash_platform_data apollon_flash_data = {
  92         .parts          = apollon_partitions,
  93         .nr_parts       = ARRAY_SIZE(apollon_partitions),
  94 };
  95
  96 static struct resource apollon_flash_resource[] = {
  97         [0] = {
  98                 .flags          = IORESOURCE_MEM,
  99         },
 100 };
 101
 102 static struct platform_device apollon_onenand_device = {
 103         .name           = "onenand",
 104         .id             = -1,
 105         .dev            = {
 106                 .platform_data  = &apollon_flash_data,
 107         },
 108         .num_resources  = ARRAY_SIZE(apollon_flash_resource),
 109         .resource       = apollon_flash_resource,
 110 };
 111
 112 static void __init apollon_flash_init(void)
 113 {
 114         unsigned long base;
 115
 116         if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
 117                 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
 118                 return;
 119         }
 120         apollon_flash_resource[0].start = base;
 121         apollon_flash_resource[0].end   = base + SZ_128K - 1;
 122 }
 123
 124 static struct resource apollon_smc91x_resources[] = {
 125         [0] = {
 126                 .flags  = IORESOURCE_MEM,
 127         },
 128         [1] = {
 129                 .start  = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
 130                 .end    = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
 131                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 132         },
 133 };
 134
 135 static struct platform_device apollon_smc91x_device = {
 136         .name           = "smc91x",
 137         .id             = -1,
 138         .num_resources  = ARRAY_SIZE(apollon_smc91x_resources),
 139         .resource       = apollon_smc91x_resources,
 140 };
 141
 142 static struct platform_device apollon_lcd_device = {
 143         .name           = "apollon_lcd",
 144         .id             = -1,
 145 };
 146
 147 static struct omap_led_config apollon_led_config[] = {
 148         {
 149                 .cdev   = {
 150                         .name   = "apollon:led0",
 151                 },
 152                 .gpio   = LED0_GPIO13,
 153         },
 154         {
 155                 .cdev   = {
 156                         .name   = "apollon:led1",
 157                 },
 158                 .gpio   = LED1_GPIO14,
 159         },
 160         {
 161                 .cdev   = {
 162                         .name   = "apollon:led2",
 163                 },
 164                 .gpio   = LED2_GPIO15,
 165         },
 166 #ifdef CONFIG_MACH_OMAP_APOLLON_PLUS
 167         {
 168                 .cdev   = {
 169                         .name   = "apollon:led3",
 170                 },
 171                 .gpio   = LED3_GPIO92,
 172         },
 173         {
 174                 .cdev   = {
 175                         .name   = "apollon:led4",
 176                 },
 177                 .gpio   = LED4_GPIO93,
 178         },
 179 #endif
 180 };
 181
 182 static struct omap_led_platform_data apollon_led_data = {
 183         .nr_leds        = ARRAY_SIZE(apollon_led_config),
 184         .leds           = apollon_led_config,
 185 };
 186
 187 static struct platform_device apollon_led_device = {
 188         .name           = "omap-led",
 189         .id             = -1,
 190         .dev            = {
 191                 .platform_data  = &apollon_led_data,
 192         },
 193 };
 194
 195 static struct platform_device *apollon_devices[] __initdata = {
 196         &apollon_onenand_device,
 197         &apollon_smc91x_device,
 198         &apollon_lcd_device,
 199         &apollon_led_device,
 200 };
 201
 202 static inline void __init apollon_init_smc91x(void)
 203 {
 204         unsigned long base;
 205         unsigned int rate;
 206         struct clk *l3ck;
 207         int eth_cs;
 208
 209         l3ck = clk_get(NULL, "core_l3_ck");
 210         if (IS_ERR(l3ck))
 211                 rate = 100000000;
 212         else
 213                 rate = clk_get_rate(l3ck);
 214
 215         eth_cs = APOLLON_ETH_CS;
 216
 217         /* Make sure CS1 timings are correct */
 218         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
 219
 220         if (rate >= 160000000) {
 221                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 222                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 223                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 224                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 225                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 226         } else if (rate >= 130000000) {
 227                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 228                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 229                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 230                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 231                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 232         } else {/* rate = 100000000 */
 233                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 234                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 235                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 236                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 237                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 238         }
 239
 240         if (gpmc_cs_request(eth_cs, SZ_16M, &base) < 0) {
 241                 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
 242                 return;
 243         }
 244         apollon_smc91x_resources[0].start = base + 0x300;
 245         apollon_smc91x_resources[0].end   = base + 0x30f;
 246         udelay(100);
 247
 248         omap_cfg_reg(W4__24XX_GPIO74);
 249         if (omap_request_gpio(APOLLON_ETHR_GPIO_IRQ) < 0) {
 250                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 251                         APOLLON_ETHR_GPIO_IRQ);
 252                 gpmc_cs_free(eth_cs);
 253                 return;
 254         }
 255         omap_set_gpio_direction(APOLLON_ETHR_GPIO_IRQ, 1);
 256 }
 257
 258 static void __init omap_apollon_init_irq(void)
 259 {
 260         omap2_init_common_hw();
 261         omap_init_irq();
 262         omap_gpio_init();
 263         apollon_init_smc91x();
 264 }
 265
 266 static struct tsc210x_config tsc_platform_data = {
 267         .use_internal           = 1,
 268         .monitor                = TSC_TEMP,
 269         .mclk                   = "sys_clkout",
 270 };
 271
 272 static struct spi_board_info apollon_spi_board_info[] = {
 273         [0] = {
 274                 .modalias       = "tsc2101",
 275                 .irq            = OMAP_GPIO_IRQ(85),
 276                 .bus_num        = 1,
 277                 .chip_select    = 0,
 278                 .mode           = SPI_MODE_1,
 279                 .max_speed_hz   = 6000000,
 280                 .platform_data  = &tsc_platform_data,
 281         },
 282 };
 283
 284 static struct omap_uart_config apollon_uart_config __initdata = {
 285         .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2),
 286 };
 287
 288 /*
 289  * Note: If you want to detect card feature, please assign GPIO 37
 290  */
 291 static struct omap_mmc_config apollon_mmc_config __initdata = {
 292         .mmc [0] = {
 293                 .enabled        = 1,
 294                 .wire4          = 1,
 295         /* Use internal loop-back in MMC/SDIO Module Input Clock selection */
 296                 .internal_clock = 1,
 297         },
 298 };
 299
 300 static struct omap_usb_config apollon_usb_config __initdata = {
 301         .register_dev   = 1,
 302         .hmc_mode       = 0x14, /* 0:dev 1:host1 2:disable */
 303
 304         .pins[0]        = 6,
 305 };
 306
 307 static struct omap_lcd_config apollon_lcd_config __initdata = {
 308         .ctrl_name      = "internal",
 309 };
 310
 311 static struct omap_board_config_kernel apollon_config[] __initdata = {
 312         { OMAP_TAG_UART,        &apollon_uart_config },
 313         { OMAP_TAG_MMC,         &apollon_mmc_config },
 314         { OMAP_TAG_USB,         &apollon_usb_config },
 315         { OMAP_TAG_LCD,         &apollon_lcd_config },
 316 };
 317
 318 static void __init apollon_led_init(void)
 319 {
 320         /* LED0 - AA10 */
 321         omap_cfg_reg(AA10_242X_GPIO13);
 322         omap_request_gpio(LED0_GPIO13);
 323         omap_set_gpio_direction(LED0_GPIO13, 0);
 324         omap_set_gpio_dataout(LED0_GPIO13, 0);
 325         /* LED1  - AA6 */
 326         omap_cfg_reg(AA6_242X_GPIO14);
 327         omap_request_gpio(LED1_GPIO14);
 328         omap_set_gpio_direction(LED1_GPIO14, 0);
 329         omap_set_gpio_dataout(LED1_GPIO14, 0);
 330         /* LED2  - AA4 */
 331         omap_cfg_reg(AA4_242X_GPIO15);
 332         omap_request_gpio(LED2_GPIO15);
 333         omap_set_gpio_direction(LED2_GPIO15, 0);
 334         omap_set_gpio_dataout(LED2_GPIO15, 0);
 335 #ifdef CONFIG_MACH_OMAP_APOLLON_PLUS
 336         /* LED3 - M15 */
 337         omap_cfg_reg(M15_24XX_GPIO92);
 338         omap_request_gpio(LED3_GPIO92);
 339         omap_set_gpio_direction(LED3_GPIO92, 0);
 340         omap_set_gpio_dataout(LED3_GPIO92, 0);
 341         /* LED4 - P20 */
 342         omap_cfg_reg(P20_24XX_GPIO93);
 343         omap_request_gpio(LED4_GPIO93);
 344         omap_set_gpio_direction(LED4_GPIO93, 0);
 345         omap_set_gpio_dataout(LED4_GPIO93, 0);
 346 #endif
 347 }
 348
 349 static void __init apollon_usb_init(void)
 350 {
 351         /* USB device */
 352         /* DEVICE_SUSPEND */
 353         omap_cfg_reg(P21_242X_GPIO12);
 354         omap_request_gpio(12);
 355         omap_set_gpio_direction(12, 0);         /* OUT */
 356         omap_set_gpio_dataout(12, 0);
 357 }
 358
 359 static void __init apollon_tsc_init(void)
 360 {
 361         /* TSC2101 */
 362         omap_cfg_reg(N15_24XX_GPIO85);
 363         omap_request_gpio(85);
 364         omap_set_gpio_direction(85, 1);
 365
 366         omap_cfg_reg(W14_24XX_SYS_CLKOUT);      /* mclk */
 367 }
 368
 369 static void __init omap_apollon_init(void)
 370 {
 371         apollon_led_init();
 372         apollon_flash_init();
 373         apollon_usb_init();
 374         apollon_tsc_init();
 375
 376         /*
 377          * Make sure the serial ports are muxed on at this point.
 378          * You have to mux them off in device drivers later on
 379          * if not needed.
 380          */
 381         platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
 382         omap_board_config = apollon_config;
 383         omap_board_config_size = ARRAY_SIZE(apollon_config);
 384         omap_serial_init();
 385         omap_register_i2c_bus(1, 100, NULL, 0);
 386         omap_register_i2c_bus(2, 100, NULL, 0);
 387
 388         spi_register_board_info(apollon_spi_board_info,
 389                                 ARRAY_SIZE(apollon_spi_board_info));
 390
 391         apollon_mmc_init();
 392 }
 393
 394 static void __init omap_apollon_map_io(void)
 395 {
 396         omap2_set_globals_242x();
 397         omap2_map_common_io();
 398 }
 399
 400 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
 401         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 402         .phys_io        = 0x48000000,
 403         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 404         .boot_params    = 0x80000100,
 405         .map_io         = omap_apollon_map_io,
 406         .init_irq       = omap_apollon_init_irq,
 407         .init_machine   = omap_apollon_init,
 408         .timer          = &omap_timer,
 409 MACHINE_END